Sure thing, let's get straight to it. We start with 730 and we're going to multiply it by 399, which means adding 730 to itself 399 times.
Step 1: 0 + 730 = 730
Step 2: 730 + 730 = 1460
Step 3: 1460 + 730 = 2190
Step 4: 2190 + 730 = 2920
Step 5: 2920 + 730 = 3650
Step 6: 3650 + 730 = 4380
Step 7: 4380 + 730 = 5110
Step 8: 5110 + 730 = 5840
Step 9: 5840 + 730 = 6570
Step 10: 6570 + 730 = 7300
Step 11: 7300 + 730 = 8030
Step 12: 8030 + 730 = 8760
Step 13: 8760 + 730 = 9490
Step 14: 9490 + 730 = 10220
Step 15: 10220 + 730 = 10950
Step 16: 10950 + 730 = 11680
Step 17: 11680 + 730 = 12410
Step 18: 12410 + 730 = 13140
Step 19: 13140 + 730 = 13870
Step 20: 13870 + 730 = 14600
Step 21: 14600 + 730 = 15330
Step 22: 15330 + 730 = 16060
Step 23: 16060 + 730 = 16790
Step 24: 16790 + 730 = 17520
Step 25: 17520 + 730 = 18250
Step 26: 18250 + 730 = 18980
Step 27: 18980 + 730 = 19710
Step 28: 19710 + 730 = 20440
Step 29: 20440 + 730 = 21170
Step 30: 21170 + 730 = 21900
Step 31: 21900 + 730 = 22630
Step 32: 22630 + 730 = 23360
Step 33: 23360 + 730 = 24090
Step 34: 24090 + 730 = 24820
Step 35: 24820 + 730 = 25550
Step 36: 25550 + 730 = 26280
Step 37: 26280 + 730 = 27010
Step 38: 27010 + 730 = 27740
Step 39: 27740 + 730 = 28470
Step 40: 28470 + 730 = 29200
Step 41: 29200 + 730 = 29930
Step 42: 29930 + 730 = 30660
Step 43: 30660 + 730 = 31390
Step 44: 31390 + 730 = 32120
Step 45: 32120 + 730 = 32850
Step 46: 32850 + 730 = 33580
Step 47: 33580 + 730 = 34310
Step 48: 34310 + 730 = 35040
Step 49: 35040 + 730 = 35770
Step 50: 35770 + 730 = 36500
Step 51: 36500 + 730 = 37230
Step 52: 37230 + 730 = 37960
Step 53: 37960 + 730 = 38690
Step 54: 38690 + 730 = 39420
Step 55: 39420 + 730 = 40150
Step 56: 40150 + 730 = 40880
Step 57: 40880 + 730 = 41610
Step 58: 41610 + 730 = 42340
Step 59: 42340 + 730 = 43070
Step 60: 43070 + 730 = 43800
Step 61: 43800 + 730 = 44530
Step 62: 44530 + 730 = 45260
Step 63: 45260 + 730 = 45990
Step 64: 45990 + 730 = 46720
Step 65: 46720 + 730 = 47450
Step 66: 47450 + 730 = 48180
Step 67: 48180 + 730 = 48910
Step 68: 48910 + 730 = 49640
Step 69: 49640 + 730 = 50370
Step 70: 50370 + 730 = 51100
Step 71: 51100 + 730 = 51830
Step 72: 51830 + 730 = 52560
Step 73: 52560 + 730 = 53290
Step 74: 53290 + 730 = 54020
Step 75: 54020 + 730 = 54750
Step 76: 54750 + 730 = 55480
Step 77: 55480 + 730 = 56210
Step 78: 56210 + 730 = 56940
Step 79: 56940 + 730 = 57670
Step 80: 57670 + 730 = 58400
Step 81: 58400 + 730 = 59130
Step 82: 59130 + 730 = 59860
Step 83: 59860 + 730 = 60590
Step 84: 60590 + 730 = 61320
Step 85: 61320 + 730 = 62050
Step 86: 62050 + 730 = 62780
Step 87: 62780 + 730 = 63510
Step 88: 63510 + 730 = 64240
Step 89: 64240 + 730 = 64970
Step 90: 64970 + 730 = 65700
Step 91: 65700 + 730 = 66430
Step 92: 66430 + 730 = 67160
Step 93: 67160 + 730 = 67890
Step 94: 67890 + 730 = 68620
Step 95: 68620 + 730 = 69350
Step 96: 69350 + 730 = 70080
Step 97: 70080 + 730 = 70810
Step 98: 70810 + 730 = 71540
Step 99: 71540 + 730 = 72270
Step 100: 72270 + 730 = 73000
Step 101: 73000 + 730 = 73730
Step 102: 73730 + 730 = 74460
Step 103: 74460 + 730 = 75190
Step 104: 75190 + 730 = 75920
Step 105: 75920 + 730 = 76650
Step 106: 76650 + 730 = 77380
Step 107: 77380 + 730 = 78110
Step 108: 78110 + 730 = 78840
Step 109: 78840 + 730 = 79570
Step 110: 79570 + 730 = 80300
Step 111: 80300 + 730 = 81030
Step 112: 81030 + 730 = 81760
Step 113: 81760 + 730 = 82490
Step 114: 82490 + 730 = 83220
Step 115: 83220 + 730 = 83950
Step 116: 83950 + 730 = 84680
Step 117: 84680 + 730 = 85410
Step 118: 85410 + 730 = 86140
Step 119: 86140 + 730 = 86870
Step 120: 86870 + 730 = 87600
Step 121: 87600 + 730 = 88330
Step 122: 88330 + 730 = 89060
Step 123: 89060 + 730 = 89790
Step 124: 89790 + 730 = 90520
Step 125: 90520 + 730 = 91250
Step 126: 91250 + 730 = 91980
Step 127: 91980 + 730 = 92710
Step 128: 92710 + 730 = 93440
Step 129: 93440 + 730 = 94170
Step 130: 94170 + 730 = 94900
Step 131: 94900 + 730 = 95630
Step 132: 95630 + 730 = 96360
Step 133: 96360 + 730 = 97090
Step 134: 97090 + 730 = 97820
Step 135: 97820 + 730 = 98550
Step 136: 98550 + 730 = 99280
Step 137: 99280 + 730 = 100010
Step 138: 100010 + 730 = 100740
Step 139: 100740 + 730 = 101470
Step 140: 101470 + 730 = 102200
Step 141: 102200 + 730 = 102930
Step 142: 102930 + 730 = 103660
Step 143: 103660 + 730 = 104390
Step 144: 104390 + 730 = 105120
Step 145: 105120 + 730 = 105850
Step 146: 105850 + 730 = 106580
Step 147: 106580 + 730 = 107310
Step 148: 107310 + 730 = 108040
Step 149: 108040 + 730 = 108770
Step 150: 108770 + 730 = 109500
Step 151: 109500 + 730 = 110230
Step 152: 110230 + 730 = 110960
Step 153: 110960 + 730 = 111690
Step 154: 111690 + 730 = 112420
Step 155: 112420 + 730 = 113150
Step 156: 113150 + 730 = 113880
Step 157: 113880 + 730 = 114610
Step 158: 114610 + 730 = 115340
Step 159: 115340 + 730 = 116070
Step 160: 116070 + 730 = 116800
Step 161: 116800 + 730 = 117530
Step 162: 117530 + 730 = 118260
Step 163: 118260 + 730 = 118990
Step 164: 118990 + 730 = 119720
Step 165: 119720 + 730 = 120450
Step 166: 120450 + 730 = 121180
Step 167: 121180 + 730 = 121910
Step 168: 121910 + 730 = 122640
Step 169: 122640 + 730 = 123370
Step 170: 123370 + 730 = 124100
Step 171: 124100 + 730 = 124830
Step 172: 124830 + 730 = 125560
Step 173: 125560 + 730 = 126290
Step 174: 126290 + 730 = 127020
Step 175: 127020 + 730 = 127750
Step 176: 127750 + 730 = 128480
Step 177: 128480 + 730 = 129210
Step 178: 129210 + 730 = 129940
Step 179: 129940 + 730 = 130670
Step 180: 130670 + 730 = 131400
Step 181: 131400 + 730 = 132130
Step 182: 132130 + 730 = 132860
Step 183: 132860 + 730 = 133590
Step 184: 133590 + 730 = 134320
Step 185: 134320 + 730 = 135050
Step 186: 135050 + 730 = 135780
Step 187: 135780 + 730 = 136510
Step 188: 136510 + 730 = 137240
Step 189: 137240 + 730 = 137970
Step 190: 137970 + 730 = 138700
Step 191: 138700 + 730 = 139430
Step 192: 139430 + 730 = 140160
Step 193: 140160 + 730 = 140890
Step 194: 140890 + 730 = 141620
Step 195: 141620 + 730 = 142350
Step 196: 142350 + 730 = 143080
Step 197: 143080 + 730 = 143810
Step 198: 143810 + 730 = 144540
Step 199: 144540 + 730 = 145270
Step 200: 145270 + 730 = 146000
Step 201: 146000 + 730 = 146730
Step 202: 146730 + 730 = 147460
Step 203: 147460 + 730 = 148190
Step 204: 148190 + 730 = 148920
Step 205: 148920 + 730 = 149650
Step 206: 149650 + 730 = 150380
Step 207: 150380 + 730 = 151110
Step 208: 151110 + 730 = 151840
Step 209: 151840 + 730 = 152570
Step 210: 152570 + 730 = 153300
Step 211: 153300 + 730 = 154030
Step 212: 154030 + 730 = 154760
Step 213: 154760 + 730 = 155490
Step 214: 155490 + 730 = 156220
Step 215: 156220 + 730 = 156950
Step 216: 156950 + 730 = 157680
Step 217: 157680 + 730 = 158410
Step 218: 158410 + 730 = 159140
Step 219: 159140 + 730 = 159870
Step 220: 159870 + 730 = 160600
Step 221: 160600 + 730 = 161330
Step 222: 161330 + 730 = 162060
Step 223: 162060 + 730 = 162790
Step 224: 162790 + 730 = 163520
Step 225: 163520 + 730 = 164250
Step 226: 164250 + 730 = 164980
Step 227: 164980 + 730 = 165710
Step 228: 165710 + 730 = 166440
Step 229: 166440 + 730 = 167170
Step 230: 167170 + 730 = 167900
Step 231: 167900 + 730 = 168630
Step 232: 168630 + 730 = 169360
Step 233: 169360 + 730 = 170090
Step 234: 170090 + 730 = 170820
Step 235: 170820 + 730 = 171550
Step 236: 171550 + 730 = 172280
Step 237: 172280 + 730 = 173010
Step 238: 173010 + 730 = 173740
Step 239: 173740 + 730 = 174470
Step 240: 174470 + 730 = 175200
Step 241: 175200 + 730 = 175930
Step 242: 175930 + 730 = 176660
Step 243: 176660 + 730 = 177390
Step 244: 177390 + 730 = 178120
Step 245: 178120 + 730 = 178850
Step 246: 178850 + 730 = 179580
Step 247: 179580 + 730 = 180310
Step 248: 180310 + 730 = 181040
Step 249: 181040 + 730 = 181770
Step 250: 181770 + 730 = 182500
Step 251: 182500 + 730 = 183230
Step 252: 183230 + 730 = 183960
Step 253: 183960 + 730 = 184690
Step 254: 184690 + 730 = 185420
Step 255: 185420 + 730 = 186150
Step 256: 186150 + 730 = 186880
Step 257: 186880 + 730 = 187610
Step 258: 187610 + 730 = 188340
Step 259: 188340 + 730 = 189070
Step 260: 189070 + 730 = 189800
Step 261: 189800 + 730 = 190530
Step 262: 190530 + 730 = 191260
Step 263: 191260 + 730 = 191990
Step 264: 191990 + 730 = 192720
Step 265: 192720 + 730 = 193450
Step 266: 193450 + 730 = 194180
Step 267: 194180 + 730 = 194910
Step 268: 194910 + 730 = 195640
Step 269: 195640 + 730 = 196370
Step 270: 196370 + 730 = 197100
Step 271: 197100 + 730 = 197830
Step 272: 197830 + 730 = 198560
Step 273: 198560 + 730 = 199290
Step 274: 199290 + 730 = 200020
Step 275: 200020 + 730 = 200750
Step 276: 200750 + 730 = 201480
Step 277: 201480 + 730 = 202210
Step 278: 202210 + 730 = 202940
Step 279: 202940 + 730 = 203670
Step 280: 203670 + 730 = 204400
Step 281: 204400 + 730 = 205130
Step 282: 205130 + 730 = 205860
Step 283: 205860 + 730 = 206590
Step 284: 206590 + 730 = 207320
Step 285: 207320 + 730 = 208050
Step 286: 208050 + 730 = 208780
Step 287: 208780 + 730 = 209510
Step 288: 209510 + 730 = 210240
Step 289: 210240 + 730 = 210970
Step 290: 210970 + 730 = 211700
Step 291: 211700 + 730 = 212430
Step 292: 212430 + 730 = 213160
Step 293: 213160 + 730 = 213890
Step 294: 213890 + 730 = 214620
Step 295: 214620 + 730 = 215350
Step 296: 215350 + 730 = 216080
Step 297: 216080 + 730 = 216810
Step 298: 216810 + 730 = 217540
Step 299: 217540 + 730 = 218270
Step 300: 218270 + 730 = 219000
Step 301: 219000 + 730 = 219730
Step 302: 219730 + 730 = 220460
Step 303: 220460 + 730 = 221190
Step 304: 221190 + 730 = 221920
Step 305: 221920 + 730 = 222650
Step 306: 222650 + 730 = 223380
Step 307: 223380 + 730 = 224110
Step 308: 224110 + 730 = 224840
Step 309: 224840 + 730 = 225570
Step 310: 225570 + 730 = 226300
Step 311: 226300 + 730 = 227030
Step 312: 227030 + 730 = 227760
Step 313: 227760 + 730 = 228490
Step 314: 228490 + 730 = 229220
Step 315: 229220 + 730 = 229950
Step 316: 229950 + 730 = 230680
Step 317: 230680 + 730 = 231410
Step 318: 231410 + 730 = 232140
Step 319: 232140 + 730 = 232870
Step 320: 232870 + 730 = 233600
Step 321: 233600 + 730 = 234330
Step 322: 234330 + 730 = 235060
Step 323: 235060 + 730 = 235790
Step 324: 235790 + 730 = 236520
Step 325: 236520 + 730 = 237250
Step 326: 237250 + 730 = 237980
Step 327: 237980 + 730 = 238710
Step 328: 238710 + 730 = 239440
Step 329: 239440 + 730 = 240170
Step 330: 240170 + 730 = 240900
Step 331: 240900 + 730 = 241630
Step 332: 241630 + 730 = 242360
Step 333: 242360 + 730 = 243090
Step 334: 243090 + 730 = 243820
Step 335: 243820 + 730 = 244550
Step 336: 244550 + 730 = 245280
Step 337: 245280 + 730 = 246010
Step 338: 246010 + 730 = 246740
Step 339: 246740 + 730 = 247470
Step 340: 247470 + 730 = 248200
Step 341: 248200 + 730 = 248930
Step 342: 248930 + 730 = 249660
Step 343: 249660 + 730 = 250390
Step 344: 250390 + 730 = 251120
Step 345: 251120 + 730 = 251850
Step 346: 251850 + 730 = 252580
Step 347: 252580 + 730 = 253310
Step 348: 253310 + 730 = 254040
Step 349: 254040 + 730 = 254770
Step 350: 254770 + 730 = 255500
Step 351: 255500 + 730 = 256230
Step 352: 256230 + 730 = 256960
Step 353: 256960 + 730 = 257690
Step 354: 257690 + 730 = 258420
Step 355: 258420 + 730 = 259150
Step 356: 259150 + 730 = 259880
Step 357: 259880 + 730 = 260610
Step 358: 260610 + 730 = 261340
Step 359: 261340 + 730 = 262070
Step 360: 262070 + 730 = 262800
Step 361: 262800 + 730 = 263530
Step 362: 263530 + 730 = 264260
Step 363: 264260 + 730 = 264990
Step 364: 264990 + 730 = 265720
Step 365: 265720 + 730 = 266450
Step 366: 266450 + 730 = 267180
Step 367: 267180 + 730 = 267910
Step 368: 267910 + 730 = 268640
Step 369: 268640 + 730 = 269370
Step 370: 269370 + 730 = 270100
Step 371: 270100 + 730 = 270830
Step 372: 270830 + 730 = 271560
Step 373: 271560 + 730 = 272290
Step 374: 272290 + 730 = 273020
Step 375: 273020 + 730 = 273750
Step 376: 273750 + 730 = 274480
Step 377: 274480 + 730 = 275210
Step 378: 275210 + 730 = 275940
Step 379: 275940 + 730 = 276670
Step 380: 276670 + 730 = 277400
Step 381: 277400 + 730 = 278130
Step 382: 278130 + 730 = 278860
Step 383: 278860 + 730 = 279590
Step 384: 279590 + 730 = 280320
Step 385: 280320 + 730 = 281050
Step 386: 281050 + 730 = 281780
Step 387: 281780 + 730 = 282510
Step 388: 282510 + 730 = 283240
Step 389: 283240 + 730 = 283970
Step 390: 283970 + 730 = 284700
Step 391: 284700 + 730 = 285430
Step 392: 285430 + 730 = 286160
Step 393: 286160 + 730 = 286890
Step 394: 286890 + 730 = 287620
Step 395: 287620 + 730 = 288350
Step 396: 288350 + 730 = 289080
Step 397: 289080 + 730 = 289810
Step 398: 289810 + 730 = 290540
Step 399: 290540 + 730 = 291270

So, 730*399 = 291270